CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 0.31	$ 0.31	$ 0.62	$ 0.57
Distribution of shares of treasury stock for directors' compensation (in shares)		2,707	8,575	9,291
Treasury stock acquired (in shares)		5,831	15,388	28,706
Sale of shares of treasury stock (in shares)	2,137	2,333	4,682	6,024
Shares forfeited (in shares)	681		681
Distribution of shares of treasury stock for employee restricted stock awards (in shares)			3,985
Distribution of shares of treasury stock for deferred directors' compensation (in shares)				2,707
Distribution of shares of treasury stock for employee stock compensation (in shares)				3,860